fix(install): fallback missing platform pkg to npmjs

Author: dongowu

CHANGELOG.md

@@ -2,6 +2,13 @@
 
 All notable changes to this project will be documented in this file.
 
+## [2.0.1] - 2026-02-06
+
+### 🛠 Installation Reliability
+
+- **npmjs Fallback for Platform Binary**: `install.cjs` now auto-installs the missing platform package from `https://registry.npmjs.org/` when mirror registries do not have `@dongowu/git-ai-cli-*` artifacts.
+- **Better Error Guidance**: Installation now prints detected registry and an explicit retry command when fallback install fails.
+
 ## [2.0.0] - 2026-02-06
 
 ### 🦀 Rust Rewrite Upgrade (v1.0.21 -> v2.0.0)

Cargo.lock

@@ -1,6 +1,6 @@
 [package]
 name = "git-ai-cli"
-version = "2.0.0"
+version = "2.0.1"
 edition = "2021"
 authors = ["dongowu <dongowu@gmail.com>"]
 description = "A CLI tool to generate git commit messages using AI"

Cargo.toml

@@ -3,6 +3,7 @@
 const fs = require('fs');
 const path = require('path');
 const os = require('os');
+const { spawnSync } = require('child_process');
 
 // Detect platform and architecture
 const platform = os.platform();
@@ -17,34 +18,90 @@ const platformMap = {
   'win32-x64': 'win32-x64',
 };
 
-const key = `${platform}-${arch}`;
+const key = platform + '-' + arch;
 const platformKey = platformMap[key];
+const npmjsRegistry = 'https://registry.npmjs.org/';
 
 if (!platformKey) {
-  console.error(`Unsupported platform: ${platform} ${arch}`);
+  console.error('Unsupported platform: ' + platform + ' ' + arch);
   process.exit(1);
 }
 
 // Try to find the binary from the platform-specific package
-const packageName = `@dongowu/git-ai-cli-${platformKey}`;
+const packageName = '@dongowu/git-ai-cli-' + platformKey;
 const nodeModulesPath = path.join(__dirname, 'node_modules');
 const binaryName = platform === 'win32' ? 'git-ai.exe' : 'git-ai';
 const binaryPath = path.join(nodeModulesPath, packageName, 'bin', binaryName);
 
+function getRootPackageVersion() {
+  try {
+    const pkg = JSON.parse(fs.readFileSync(path.join(__dirname, 'package.json'), 'utf8'));
+    return pkg.version;
+  } catch (err) {
+    console.warn('Warning: Failed to read package version: ' + err.message);
+    return 'latest';
+  }
+}
+
+function installPlatformPackageFromNpmjs(packageSpec) {
+  const npmExecPath = process.env.npm_execpath;
+  let command = 'npm';
+  const args = [];
+
+  if (npmExecPath && npmExecPath.endsWith('.js')) {
+    command = process.execPath;
+    args.push(npmExecPath);
+  } else if (npmExecPath && fs.existsSync(npmExecPath)) {
+    command = npmExecPath;
+  }
+
+  args.push(
+    'install',
+    '--no-save',
+    '--no-package-lock',
+    '--ignore-scripts',
+    '--registry',
+    npmjsRegistry,
+    packageSpec
+  );
+
+  const result = spawnSync(command, args, {
+    cwd: __dirname,
+    stdio: 'inherit',
+    env: process.env,
+  });
+
+  return result.status === 0;
+}
+
 // Check if binary exists
 if (!fs.existsSync(binaryPath)) {
-  console.warn(`Warning: Binary not found at ${binaryPath}`);
-  console.warn(`Please ensure the ${packageName} package is installed.`);
-  process.exit(1);
+  console.warn('Warning: Binary not found at ' + binaryPath);
+
+  const packageVersion = getRootPackageVersion();
+  const packageSpec = packageName + '@' + packageVersion;
+
+  console.warn('Trying to install ' + packageSpec + ' from ' + npmjsRegistry + '...');
+
+  const installed = installPlatformPackageFromNpmjs(packageSpec);
+  if (!installed || !fs.existsSync(binaryPath)) {
+    const detectedRegistry = process.env.npm_config_registry || 'unknown';
+    console.error('Failed to install ' + packageSpec + '.');
+    console.error('Detected npm registry: ' + detectedRegistry);
+    console.error('Please retry with: npm install -g @dongowu/git-ai-cli --registry=' + npmjsRegistry);
+    process.exit(1);
+  }
+
+  console.log('✅ Installed missing platform package: ' + packageSpec);
 }
 
 // Make binary executable on Unix-like systems
 if (process.platform !== 'win32') {
   try {
     fs.chmodSync(binaryPath, 0o755);
   } catch (err) {
-    console.warn(`Warning: Could not make binary executable: ${err.message}`);
+    console.warn('Warning: Could not make binary executable: ' + err.message);
   }
 }
 
-console.log(`✅ git-ai binary installed for ${platformKey}`);
+console.log('✅ git-ai binary installed for ' + platformKey);

install.cjs

@@ -1,6 +1,6 @@
 {
   "name": "@dongowu/git-ai-cli",
-  "version": "2.0.0",
+  "version": "2.0.1",
   "description": "Generate git commit messages using AI - Rust Edition",
   "main": "bin/git-ai.cjs",
   "bin": {
@@ -43,10 +43,10 @@
     "LICENSE"
   ],
   "optionalDependencies": {
-    "@dongowu/git-ai-cli-linux-x64": "2.0.0",
-    "@dongowu/git-ai-cli-linux-arm64": "2.0.0",
-    "@dongowu/git-ai-cli-darwin-x64": "2.0.0",
-    "@dongowu/git-ai-cli-darwin-arm64": "2.0.0",
-    "@dongowu/git-ai-cli-win32-x64": "2.0.0"
+    "@dongowu/git-ai-cli-linux-x64": "2.0.1",
+    "@dongowu/git-ai-cli-linux-arm64": "2.0.1",
+    "@dongowu/git-ai-cli-darwin-x64": "2.0.1",
+    "@dongowu/git-ai-cli-darwin-arm64": "2.0.1",
+    "@dongowu/git-ai-cli-win32-x64": "2.0.1"
   }
 }

package.json

@@ -11,7 +11,7 @@ use error::Result;
 #[derive(Parser)]
 #[command(name = "git-ai")]
 #[command(about = "Generate git commit messages using AI", long_about = None)]
-#[command(version = "2.0.0")]
+#[command(version = "2.0.1")]
 struct Cli {
     #[command(subcommand)]
     command: Option<Commands>,